1. Department of Psychiatry, Emory University School of Medicine, Atlanta, Georgia.
2. Division of Pediatric Cardiology, University Hospitals Rainbow Babies and Children's Hospital, Cleveland, Ohio.
3. Children's Hospital of Atlanta & Emory University School of Medicine, Atlanta, Georgia.
4. Harvard Medical School, Massachusetts General Hospital, Lurie Center for Autism, Boston, Massachusetts.
5. Division of Child Psychiatry, University of California at Los Angeles, Los Angeles, California.
6. Nisonger Center, Ohio State University, Columbus, Ohio.
7. Kennedy Krieger Institute, Baltimore, Maryland.
8. Mattel Children's Hospital, University of California at Los Angeles, Los Angeles, California.
9. Yale Child Study Center, Yale University School of Medicine, New Haven, Connecticut.
10. National Institute of Mental Health, Bethesda, Maryland.
11. Marcus Autism Center, Emory University School of Medicine, Atlanta, Georgia.